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公开(公告)号：DD283651A5
公开(公告)日：1990-10-17
申请号：DD32286788
申请日：1988-12-08
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： BOGDAN VULETIC , NAGL MICHAEL , SEIRLEHNER LEOPOLD , PIRKBAUER WILFRIED
Abstract: A process for operating a fusion gasifier (4) is described, in which iron ore-containing raw materials or iron sponge obtained therefrom by direct reduction are fused by addition of carbon carriers and supply of an oxygen-containing gas via oxygen nozzles (6) in a moving bed thus established and are (fully) reduced to molten crude iron or steel raw material. In the event of failure or a reduction in the oxygen supply below a predetermined rate and in the event of a failure of the water-cooling of the oxygen nozzles, the oxygen supply which may still persist is interrupted for the protection thereof and, instead, an inert gas is introduced via the oxygen nozzles into the fusion gasifier. This prevents molten fluid-bed mass from entering the oxygen nozzles and solidifying therein. In the event of failure of the water cooling of the oxygen nozzles, the inert gas serves at the same time as a coolant.
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公开(公告)号：ZA8809147B
公开(公告)日：1989-11-29
申请号：ZA8809147
申请日：1988-12-07
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： NAGL MICHAEL , MICHAEL NAGL , SEIRLEHNER LEOPOLD , LEOPOLD SEIRLEHNER , PIRKLBAUER WILFRIED , WILFRIED PIRKLBAUER
CPC classification number: C21B13/002 , C21B2100/44
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公开(公告)号：CA1310826C
公开(公告)日：1992-12-01
申请号：CA585491
申请日：1988-12-09
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： VULETIC BOGDAN , NAGL MICHAEL , PIRKLBAUER WILFRIED , SEIRLEHNER LEOPOLD
Abstract: Method for operating a melt-down gasifier and melt-down gasifier for the implementation of said method Described is a method for operating a melt-down gasifier (4) in which iron-ore-containg charge materials or iron sponge obtained from same by direct reduction are smelted due to the addition of carbon carriers and blowing an oxygen-con-taining gas through oxygen nozzles (6) into a fluidized bed created by same, and are (further) reduced to make liquid pig iron or steel starting material. On failure or reduction of the oxygen supply below a predetermined quantity and on failure of the water cooling system of the oxygen nozzles, the still present oxygen supply is cut-off and an inert gas is fed into the melt-down gasifier through the said oxygen nozzles instead, for protecting said oxygen nozzles. Thus, liquid fluidized bed matter is prevented from penetrating into the oxygen nozzles and to solidify in same. In the case of failure of the water cooling system of the oxygen nozzles, the inert gas serves also at the same time as cooling medium. (Fig. 1)
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公开(公告)号：ZA889147B
公开(公告)日：1989-11-29
申请号：ZA889147
申请日：1988-12-07
Applicant: VOEST ALPINE IND ANLAGEN
Inventor： NAGL MICHAEL , MICHAEL NAGL , SEIRLEHNER LEOPOLD , LEOPOLD SEIRLEHNER , PIRKLBAUER WILFRIED , WILFRIED PIRKLBAUER
Abstract: A process for operating a fusion gasifier (4) is described, in which iron ore-containing raw materials or iron sponge obtained therefrom by direct reduction are fused by addition of carbon carriers and supply of an oxygen-containing gas via oxygen nozzles (6) in a moving bed thus established and are (fully) reduced to molten crude iron or steel raw material. In the event of failure or a reduction in the oxygen supply below a predetermined rate and in the event of a failure of the water-cooling of the oxygen nozzles, the oxygen supply which may still persist is interrupted for the protection thereof and, instead, an inert gas is introduced via the oxygen nozzles into the fusion gasifier. This prevents molten fluid-bed mass from entering the oxygen nozzles and solidifying therein. In the event of failure of the water cooling of the oxygen nozzles, the inert gas serves at the same time as a coolant.
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